钢制管螺纹。螺纹量规。过端和不过端螺纹塞规。
Steel conduit thread; thread gauges, "go" and "not go" thread plug gauges.
在内螺纹的孔的顶端或者外螺纹的管的端部拥有相同的中径，而且拥有相同的螺纹长度和深度。
Both have the same pitch diameter at the top of the hole of internal threads or end of the pipe on external threads, and both have the same thread lengths or depths.
管帽是焊接在管端或装在管端外螺纹上以盖堵管子的管件。
Tube is welded pipe or cap in the threads in pipe fittings to cover the wall.
无接箍式套管靠管体两端的螺纹连接，所以套管外径尺寸小，可增大环形间隙，便于套管下入和提高固井质量。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
一锁定螺栓，其周面上具有与膨胀管相匹配的外螺纹，并在其一端设有凹槽。
The locking bolt is provided with an outer thread mating with the expansion pipe at the peripheral surface and has a groove at one end.
本实用新型公开了一种用于螺纹接头的管材，其特征在于：在靠近管体的端部有一扩张段，在扩张段的端部有一翻边。
The utility model discloses a pipe used for screw ends, which is characterized in that a divergent section is close to the end of the pipe body, and the end of the divergent section has a flange.
本实用新型公开了一种用于螺纹接头的管材，其特征在于：在靠近管体的端部有一扩张段，在扩张段的端部有一翻边。
The utility model discloses a pipe used for screw ends, which is characterized in that a divergent section is close to the end of the pipe body, and the end of the divergent section has a flange.
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